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Finding the Fourth Proportional to 455,955.18, 629,198.55 and 251,995.56

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Solution

The fourth proportional to 455,955.18, 629,198.55 and 251,995.56 is: 347,743.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,955.18 : 629,198.55 = 251,995.56 : x
  2. Step 2: Convert to fraction form
    455,955.18/629,198.55 = 251,995.56/x
  3. Step 3: Cross multiply
    455,955.18x = 629,198.55 × 251,995.56
  4. Step 4: Simplify right side
    455,955.18x = 158,555,240,958.44
  5. Step 5: Solve for x
    x = 158,555,240,958.44/455,955.18
  6. Step 6: Final answer
    x = 347,743.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.